浅成岩 （英语：subvolcanic rock），也称为次深成岩 (hypabyssal rock)，是一种侵入性火成岩，喷出于地壳内的中等或较浅深度(<2 km)，矿物具有中等结晶粒度（几颗中等结晶粒度就可？）。常为斑岩纹理。岩石学中（请注明是否只能在书中看到？），常见为辉绿岩(粗玄岩)。[1][2] 浅成岩包括辉绿岩（亦称为闪长岩）及斑岩。常见的浅成岩有斜长岩、石英闪长岩(quartz-dolerite)、微花岗岩及闪长岩。[1]
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